PRINTED IN USA
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AUTO TEST VSR (VSR-AT)
VANE TYPE WATERFLOW ALARM SWITCH WITH
ELECTRONIC RETARD AND AUTO TEST FEATURE
MFG. #5401239 - REV B
3/14
Do not trim the paddle. Failure to follow these instructions may prevent
the device from operating and will void the warranty. Do not obstruct or
otherwise prevent the tripstem of the flowswitch from moving when water
flows as this could damage the flowswitch and prevent an alarm. If an alarm
is not desired, a qualified technician should disable the alarm system.
DWG 1239-2
Retard Adjustment
The delay can be adjusted by turning switch S1 (see Fig. 6) to the
desired time delay (0 = no delay and 9 = 90 second delay). Factory
setting is set at 3 = 30 second delay. The time delay should be set at
the minimum required to prevent false alarms.
Installation (
see Fig. 1)
These devices may be mounted on horizontal or vertical pipe. On horizontal pipe they shall be installed on the top side of the pipe where they
will be accessible. The device should not be installed within 6" (15 cm) of a fitting which changes the direction of the waterflow or within 24"
(60 cm) of a valve or drain.
Drain the system and drill a hole in the pipe using a hole saw in a slow speed drill (see Fig. 1). Clean the inside pipe of all growth or other
material for a distance equal to the pipe diameter on either side of the hole. Roll the vane so that it may be inserted into the hole; do not bend
or crease it. Insert the vane so that the arrow on the saddle points in the direction of the waterflow. Take care not to damage the non-corrosive
bushing in the saddle. The bushing should fit inside the hole in the pipe. Install the saddle strap and tighten nuts alternately to required torque
(see the chart in Fig. 1). The vane must not rub the inside of the pipe or bind in any way.
ADAPTER
USE (2) 5180162 ADAPTERS AS SHOWN ABOVE
DN50 ONLY
ADAPTER
50mm
20mm ±2mm MAX.
DWG# 1146-1F
Fig. 1
Compatible Pipe/ Installation Requirements
Model
Nominal Pipe
Size
Nominal Pipe
O.D.
Pipe Wall Thickness
Hole Size
U-Bolt Nuts
Torque
Schedule 10 (UL) Schedule 40 (UL)
BS-1387 (LPC)
DN (VDS)
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
ft-lb
n-m
VSR AT-2
2
DN50
2.375
60.3
0.109
2.77
0.154
3.91
0.142
3.6
0.091
2.3
1.25 + .125/-.062
33.0 ± 2.0
20
27
VSR AT-2 1/2
2.5
-
2.875
73.0
0.120
3.05
0.203
5.16
-
-
-
-
VSR AT-2 1/2
-
DN65
3.000
76.1
-
-
-
-
0.142
3.6
0.102
2.6
VSR AT-3
3
DN80
3.500
88.9
0.120
3.05
0.216
5.49
0.157
4.0
0.114
2.9
2.00 ± .125
50.8 ± 2.0
VSR AT-3 1/2
3.5
-
4.000
101.6
0.120
3.05
0.226
5.74
-
-
-
-
VSR AT-4
4
DN100
4.500
114.3
0.120
3.05
0.237
6.02
0.177
4.5
0.126
3.2
VSR AT-5
5
-
5.563
141.3
0.134
3.40
0.258
6.55
-
-
-
-
VSR AT-5
-
DN125
5.500
139.7
-
-
-
-
0.197
5.0
0.142
3.6
VSR AT-6
6
DN150
6.625
168.3
0.134
3.40
0.280
7.11
0.197
5.0
0.157
4.0
VSR AT-8
8
DN200
8.625
219.1
0.148
3.76
0.322
8.18
0.248
6.3
0.177
4.5
(Flowing water activates
device in one direction only.)
DO NOT LEAVE COVER OFF FOR
AN EXTENDED PERIOD OF TIME
DIRECTION OF
WATERFLOW
TIGHTEN NUTS
ALTERNATELY
MOUNT ON PIPE SO
ARROW ON SADDLE
POINTS IN DIRECTION
OF WATERFLOW
ROLL PADDLE IN
OPPOSITE DIRECTION
OF WATERFLOW
Hole must be drilled perpendicular to the pipe and vertically centered.
Refer to the Compatible Pipe/Installation Requirements chart for size.
Correct
Incorrect
Do not leave cover off for an extended period of time as leaving the cover
off could result in damage to the VSR and result in improper operation.
On horizontal installations, it may be necessary to install a vent such as the
Potter PAV or similar to exhaust air out of the system and allow the piping to
fill with water to ensure proper operation of the Auto Test VSR.
